8 results on '"Salinas-Sánchez, D. O."'
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2. Botanical extracts from Dodonaea viscosa (Sapindales: Sapindaceae) reduce hemocyte counts from Spodoptera exigua (Lepidoptera: Noctuidae) with potential insecticidal synergism with Isaria fumosorosea (Hypocreales: Cordycipitaceae).
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Ramírez-Zamora, J., Salinas-Sánchez, D. O., Figueroa-Brito, R., Ramos-López, M. Á., Castañeda-Espinoza, J. D., and Flores-Macías, A.
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BEET armyworm , *NOCTUIDAE , *HYPOCREALES , *LEPIDOPTERA , *SAPINDACEAE , *FALL armyworm , *SPODOPTERA littoralis - Abstract
Some botanical extracts affect the cellular immune system of insects by interfering with normal hemocyte function. This gives rise to diminution in cellular immunity and causes a decrease in insect defense. This investigation evaluated the effect of acetonic (AcEDv) and methanolic (MeEDv) extracts of Dodonaea viscosa (1000, 2000, and 4000 ppm) on the total hemocyte count (THC) present in the hemolymph of Spodoptera exigua, as well as on its insecticidal activity, on its own and in combination with the entomopathogenic fungus Isaria fumosorosea. Water and Tween® were used as negative controls and Lorsban® as a positive control. Second instar S. exigua larvae were separately fed an artificial diet incorporating both extracts. THC was significantly lower in AcEDv treatment at 1000 ppm and MeEDv treatment at 1000 and 4000 ppm compared with negative controls. The insecticidal action of the individual extracts and those in combination with the conidia of I. fumosorosea manifested from day 21, while at day 28, the AcEDv at 1000 and 2000 ppm and the MeEDv at 4000 ppm applied with the fungus revealed mortality percentages higher than 50% and a significantly higher mortality compared with the negative controls. In conclusion, the extracts of D. viscosa reduced the total THC of S. exigua and suggest that the application of this plant extract presents a synergistic effect on the mortality of S. exigua exposed to entomopathogenic fungus I. fumosorosea. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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3. Evaluación bioinsecticida de extractos de Bursera copallifera (D.C.) Bullock y Bursera grandifolia (Schltdl.) Engl. en gusano cogollero Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae)
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Aldana Llanos, L., Salinas Sánchez, D. O., Valdés Estrada, Ma. E., Gutiérrez Ochoa, M., Valladares Cisneros, Ma. Guadalupe, Aldana Llanos, L., Salinas Sánchez, D. O., Valdés Estrada, Ma. E., Gutiérrez Ochoa, M., and Valladares Cisneros, Ma. Guadalupe
- Abstract
This study evaluated the bioinsecticide activity of organic extracts of Bursera copallifera and B. grandifolia on L1 larvae of Spodoptera frugiperda. It is likely that the acetonic extract (500 ppm) of leaves of B. copallifera had an effect as an antifeedant on armyworm, causing a 50% reduction in larval weight at 14 days. It also produced 47% larval mortality, whereas the hexane extract produced 44% deformed pupae, and of the population that emerged from pupae, 14% were deformed as adults. Acetone and methanol extracts of leaves of B. grandifolia produced 37 and 45% larval mortality at 14 days, respectively, whereas the hexane extract from stems caused a larval mortality of 37% over the same period., En este estudio se evaluó la actividad bioinsecticida de extractos orgánicos de Bursera copallifera y B. grandifolia sobre larvas L1 de Spodoptera frugiperda. Es probable que el extracto acetónico (500 ppm) de hojas de B. copallifera tenga actividad antialimentaria sobre el gusano cogollero al reducir en un 50% el peso larval a los 14 días. También produjo 47% de mortalidad larval, mientras que el extracto hexánico produjo un 44% de pupas deformes, y de la población que emergió, el 14% se desarrollaron como adultos deformes. Los extractos acetónico y metanólico de las hojas de B. grandifolia produjeron 37 y 45% de mortalidad larval en 14 días, respectivamente, mientras que su extracto hexánico a partir de tallos causó una mortalidad larval de 37% en el mismo lapso de tiempo.
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- 2010
4. Antimicrobial activity of medicinal plants from the Huautla Sierra Biosphere Reserve in Morelos (Mexico)
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Salinas Sánchez, D. O., Arteaga Najera, Gema L., León Rivera, Ismael, Dorado, Oscar, Valladares Cisneros, Ma. Guadalupe, Navarro García, M., Salinas Sánchez, D. O., Arteaga Najera, Gema L., León Rivera, Ismael, Dorado, Oscar, Valladares Cisneros, Ma. Guadalupe, and Navarro García, M.
- Abstract
Twenty-two extracts from nine Mexican medicinal plants of eight different families used for people neighbor to Huautla Sierra Biosphere Reserve (REBIOSH) in different infectious diseases were assayed in vitro to determine their antibacterial activity against Staphylococcus aureus, Streptococcus faecalis; Escherichia coli; Proteus mirabilis; Salmonella typhi and the yeast Candida albicans. Most plants showed antibacterial activity, while two plants showed activity against range 0.25 a 4 mg/mL almost one microorganism used. The extracts showed minimum inhibitory concentration (MIC) against S. aureus and S. faecalis, represents microorganisms Gram-positive were hexanic and acetonic extracts of Bur ser a copallifera and hexanic extract of B. grandifolia. The ethanol extract of Lippia graveolens showed a MIC value of 1 mg/mL against yeast Candida albicans., Se determinó la actividad antimicrobiana de veintidós extractos orgánicos de nueve especies vegetales medicinales de ocho diferentes familias, que son comúnmente empleadas por los habitantes de las comunidades vecinas a la reserva de la biosfera Sierra de Huautla (REBIOSH), Morelos, para tratar diferentes padecimientos infecciosos. Los microorganismos empleados fueron: Staphylococcus aureus; Streptococcus faecalis; Escherichia coli; Proteus mirabilis; Salmonella typhi y la levadura Candida albicans. La mayoría de los extractos de las plantas probadas inhibieron el crecimiento microbiano en un rango de 0.25 a 4 mg/mL de al menos uno de los microorganismos utilizados. Los extractos que mostraron las menores concentraciones mínimas inhibitorias (CMI) frente a los microorganismos S. aureus y S. faecalis, representativos de Gram-positivos fueron el extracto hexánico y acetónico de Bur ser a copallifera y el hexánico de B. grandifolia. El extracto etanólico de Lippia graveolens logró inhibir a C. albicans con una CMI de 1 mg/mL.
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- 2009
5. Anthelmintic effects of Prosopis laevigata n-hexanic extract against Haemonchus contortus in artificially infected gerbils (Meriones unguiculatus).
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De Jesús-Gabino, A. F., Mendoza-de Gives, P., Salinas-Sánchez, D. O., López-Arellano, M. E., Liébano-Hernández, E., Hernández-Velázquez, V. M., and Valladares-Cisneros, G.
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GERBILS ,PLANT extracts ,NEMATODES ,PARASITES ,ANIMAL populations - Abstract
The anthelmintic effect of Prosopis laevigata (mezquite) n-hexanic extract was evaluated against Haemonchus contortus endoparasitic stages in artificially infected gerbils (Meriones unguiculatus). Prosopis laevigata leaves were collected from the Sierra de Huautla, Ecological Reserve of the Biosphere, in Morelos State, Mexico; dehydrated under shade and macerated with n-hexane for 3 days, followed by distillation for 8 h. This procedure was repeated three times and the final extract was kept at 48C. The in vivo effect of the plant extract was evaluated in gerbils artificially infected with H. contortus. Plant extract concentration was 40mg/ml. Three groups of gerbils were as follows: group 1 (n = 7), P. laevigata extract at 100 ml intraperitoneally (IP); group 2 (n = 6), control - Tween 20 in water at a single dose of 100 ml IP; group 3 (n = 8) also served as a control, receiving water only, to determine the mortality due to causes other than the plant extract. An additional group of seven gerbils (group 4) was administered fenbendazole, as a positive control. Five days later the animals were euthanized and stomach and mucosa removed to quantify the nematodes. Data were analysed using the Student's t-test to compare the mean of nematodes obtained in groups 1, 2 and 3. The parasite population in the plant extract treated group 1 was reduced by 42.5% (P < 0.05) with respect to the control group 2; and when control group 3 was used for comparison the parasitic reduction was estimated as 53.11%. This study shows the in vivo anthelmintic effect of P. laevigata n-hexane extract for the first time, using gerbils as an in vivo model, with potential use in sheep. [ABSTRACT FROM AUTHOR]
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- 2010
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6. In vitro ovicidal activity of Brongniartia montalvoana against small ruminant gastrointestinal nematodes.
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Cortes-Morales JA, Olmedo-Juárez A, González-Cortazar M, Zamilpa A, López-Arellano MA, Ble-González EA, Tapia-Maruri D, Flores-Franco G, and Salinas-Sánchez DO
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- Animals, Larva, Plant Extracts chemistry, Ruminants, Anthelmintics therapeutic use, Fabaceae, Haemonchus, Nematoda
- Abstract
Several plants of the Fabaceae family have been assessed regarding their high nutritional value and anthelmintic properties. The ovicidal effect of the hydroalcoholic extract (Bm-HAE) and subfractions from the aerial parts of Brongniartia montalvoana (Fabaceae) against a mixed strain of gastrointestinal nematodes (GIN) (Haemonchus spp., Trichostrongylus spp. and Oesophagostomum spp.) resistant to albendazole sulfoxide, ivermectin and levamisole was evaluated by the egg hatch test (EHT). The Bm-HAE was subjected to liquid-liquid chemical separation with ethyl acetate giving two fractions, an aqueous (Bm-Aq) and an organic (Bm-EtOAct). The purification of the bioactive fraction (Bm-EtOAct) through chromatographic separation resulted in four bioactive subfractions (BmR6, BmR7, BmR8 and BmR10). The treatments were designed as follows: Bm-HAE at 800, 1,500, 3,000 and 6,000 μg/mL, and Bm-Aq, Bm-EtOAct and subfractions (BmR6, BmR7, BmR8 and BmR10) at 100, 200, 400 and 800 μg/mL. Two properly negative controls (distilled water and 2% methanol) and thiabendazole (100 μg/mL) as a positive control were used for each bioassay. The chemical identification of the extract, fractions and subfractions was performed through chromatographic processes like open column chromatography, thin-layer chromatography (TLC) and high-performance liquid chromatography (HPLC-PDA). Additionally, the GIN eggs exposed to the bioactive compounds were observed through confocal laser scanning microscopy (CLSM). The Bm-HAE showed 99.5% egg hatching inhibition (EHI) at 6,000 μg/mL with a lethal concentration (LC
50 ) of 1110 μg/mL. The Bm-EtOAc fraction displayed 99.1% EHI at 800 μg/mL with LC50 = 180 μg/mL. The ovicidal activity of the four subfractions was similar at 800 μg/mL: BmR6 (92% EHI); BmR7 (100% EHI); BmR8 (97.8%); and BmR10 (99.1%). The HPLC-PDA analysis of the bioactive subfractions allowed identification of p-coumaric acid, ferulic acid and coumarin derivatives as major compounds. The CLSM analysis allowed observation of morphological alterations in unhatched larvae caused by bioactive compounds present in the Bm-EtOAc and BmR10. In addition, the flavonoids eriodyctiol, luteolin and cynaroside were described for the first time for B. montalvoana., (Copyright © 2022 Elsevier Inc. All rights reserved.)- Published
- 2022
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7. In vitro nematicidal effect of Chenopodium ambrosioides and Castela tortuosa n-hexane extracts against Haemonchus contortus (Nematoda) and their anthelmintic effect in gerbils.
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Zamilpa A, García-Alanís C, López-Arellano ME, Hernández-Velázquez VM, Valladares-Cisneros MG, Salinas-Sánchez DO, and Mendoza-de Gives P
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- Animals, Bird Diseases parasitology, Disease Models, Animal, Drug Therapy, Combination, Female, Gerbillinae parasitology, Hexanes, Injections, Intraperitoneal, Larva drug effects, Male, Antinematodal Agents therapeutic use, Bird Diseases drug therapy, Chenopodium ambrosioides chemistry, Haemonchus drug effects, Plant Extracts therapeutic use, Simaroubaceae chemistry
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The in vitro nematicidal effect of Chenopodium ambrosioides and Castela tortuosa n-hexane extracts (E-Cham and E-Cato, respectively) on Haemonchus contortus infective larvae (L3) and the anthelmintic effect of these extracts against the pre-adult stage of the parasite in gerbils were evaluated using both individual and combined extracts. The in vitro confrontation between larvae and extracts was performed in 24-well micro-titration plates. The results were considered 24 and 72 h post confrontation. The in vivo nematicidal effect was examined using gerbils as a study model. The extracts from the two assessed plants were obtained through maceration using n-hexane as an organic agent. Gerbils artificially infected with H. contortus L3 were treated intraperitoneally with the corresponding extract either individually or in combination. The results showed that the highest individual lethal in vitro effect (96.3%) was obtained with the E-Cham extract at 72 h post confrontation at 40 mg/ml, followed by E-Cato (78.9%) at 20 mg/ml after 72 h. The highest combined effect (98.7%) was obtained after 72 h at 40 mg/ml. The in vivo assay showed that the individual administration of the E-Cato and E-Cham extracts reduced the parasitic burden in gerbils by 27.1% and 45.8%, respectively. Furthermore, the anthelmintic efficacy increased to 57.3% when both extracts were administered in combination. The results of the present study show an important combined nematicidal effect of the two plant extracts assessed against L3 in gerbils.
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- 2019
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8. In vitro nematicidal effects of medicinal plants from the Sierra de Huautla, Biosphere Reserve, Morelos, Mexico against Haemonchus contortus infective larvae.
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López-Aroche U, Salinas-Sánchez DO, Mendoza de Gives P, López-Arellano ME, Liébano-Hernández E, Valladares-Cisneros G, Arias-Ataide DM, and Hernández-Velázquez V
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- Animals, Haemonchiasis drug therapy, Larva drug effects, Mexico, Phytotherapy, Sheep, Sheep Diseases drug therapy, Toxicity Tests, Acute methods, Anthelmintics pharmacology, Haemonchus drug effects, Plant Extracts pharmacology, Plants, Medicinal
- Abstract
Twenty extracts from plants from Sierra de Huautla Biosphere Reserve, Morelos, Mexico were evaluated against Haemonchus contortus infective larvae in an in vitro assay. The plant species evaluated were Bursera copallifera, B. grandifolia, Lippia graveolens, Passiflora mexicana, Prosopis laevigata, Randia echinocarpa and Urtica dioica. The plants were separated into their parts and macerated with different solvents (n-hexane, acetone, ethanol and methanol). An in vitro assay was used to evaluate the anthelmintic activity against unsheathed third stage H. contortus infective larvae. The experiment was carried out in 24-well cell culture plates at room temperature with three replicates per treatment and using a concentration of 20 mg ml- 1. Ten 5 microl aliquots were taken from the corresponding wells and deposited on a slide for microscopical observation at 24, 48, 72 and 96 h post-exposure. The evaluation criteria were based on the average numbers of live and/or dead larvae in the different treatments. Alive and dead larval numbers were statistically analysed through the ANOVA test (P>0.01). The Tukey test was used as a complementary tool to determine which treatment was different from the other treatments (P>0.05). The highest mortality was observed with P. laevigata hexanic extract from stem and leaves combined, which produced 51%, 81% and 86% larval mortality at 24, 48 and 72 h post-exposure, respectively. On the other hand, B. copallifera stem acetonic extract exhibited 18%, 59% and 66% nematicidal activity after 24, 48 and 72 h of exposure, respectively.
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- 2008
- Full Text
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